[SOLVED] Dodge P0408 Code: Quick Fix For Egr Sensor High Circuit

The OBD code P0408 for Dodge indicates an issue with the EGR (Exhaust Gas Recirculation) system.

Symptoms include the Engine Light ON, engine hesitation.

Common causes are a faulty EGR volume control solenoid valve, carbon buildup on the EGR valve, or wiring harness issues.

This code should be addressed promptly to prevent further engine problems.

A possible fix involves inspecting and repairing the EGR components and related wiring.

Repair Importance Level	6.67 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	6.67 (Out of 10)

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Symptoms of the Dodge p0408 OBD Code

The Dodge P0408 fault code typically triggers the check engine light due to EGR sensor circuit issues.

Symptoms: Engine Light ON.
Engine hesitation.

Causes of the Dodge p0408 OBD Code

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The P0408 code in Dodge vehicles typically indicates an issue with the EGR sensor circuit.

P0408 for Dodge can be caused by a faulty EGR volume control solenoid valve.
Carbon built up on the EGR valve.
An open or shorted EGR volume control solenoid valve harness.
A poor electrical connection in the EGR volume control solenoid valve circuit.
A faulty EGR temperature sensor and circuit.

Fixing Dodge Error Code p0408 Step By Step

Address the EGR position sensor circuit issue indicated by Dodge fault code P0408.

To fix the Dodge OBDII code P0408, start by reviewing the possible causes mentioned above.
Visually examine the EGR temperature sensor wiring harness and connectors for any damage.
Check the connector pins for signs of being broken, bent, pushed out, or corroded.
If any issues are found, repair or replace the damaged components as necessary.
Clear the fault code from the vehicle’s computer using a scan tool.
Test drive the vehicle to ensure the code does not return.

Cost Of Fixing Dodge p0408 Fault Code

Diagnosing and repairing Dodge fault code P0408 typically involves testing and replacing the EGR position sensor.

The cost to diagnose and fix Dodge OBD code P0408 is typically based on 1. 0 hour of labor, with rates ranging from $75 to $150 per hour.

The total cost will depend on shop rates, complexity of the issue, and any additional parts needed for the repair.

Details of the Dodge p0408 OBD Code

Dodge fault code P0408 relates to the Exhaust Gas Recirculation (EGR) sensor circuit high.

Dodge OBD code P0408 means that there is a fault in the Exhaust Gas Recirculation (EGR) Sensor Circuit High.

This code is triggered by the Engine Control Module (ECM) when it detects a high voltage signal from the EGR position sensor or EGR pressure sensor.

The ECM monitors the EGR system to ensure proper operation and emission control.

When P0408 is set, it indicates a potential issue with the EGR sensor circuit, which may lead to drivability problems and increased emissions.

Mechanic’s Tech Notes

Detailed information on Dodge fault code P0408, including symptoms, causes, and diagnostic/repair procedures.

To diagnose and fix OBDII code P0408 on a Dodge, start by visually inspecting the wiring harness and connectors related to the EGR position sensor.

Look for any damage or corrosion on the connector pins.

Use a voltmeter to check the voltage at the EGR position sensor connector.

Ensure the sensor is receiving the correct voltage.

If the wiring and connections look good, consider testing the EGR valve itself for proper operation.

A scan tool can help monitor EGR valve position data and confirm if it matches the actual position.

If needed, cleaning or replacing the EGR valve may be necessary to resolve the issue.

FAQ

1. What are the common symptoms associated with OBD code P0408 in a Dodge vehicle?

Common symptoms of OBD code P0408 in a Dodge vehicle include Engine Light ON, engine hesitation. Causes may be faulty EGR volume control solenoid valve or carbon buildup on EGR valve.

2. What is the typical cause of OBD code P0408 in a Dodge vehicle?

The typical cause of OBD code P0408 in a Dodge vehicle is a faulty EGR volume control solenoid valve or carbon buildup on the EGR valve.

3. How can I diagnose and repair OBD code P0408 in my Dodge vehicle?

Diagnose and repair OBD code P0408 in Dodge: Symptoms include Engine Light ON, engine hesitation. Causes: Faulty EGR volume control solenoid valve, carbon buildup. Fix: Inspect wiring, connectors for damage.

Wrap Up

If your Dodge is displaying OBD code P0408 and experiencing poor engine performance, it could be caused by a faulty Exhaust Gas Recirculation (EGR) position sensor, a clogged EGR valve, or issues with the EGR system wiring.

To address Dodge OBD code P0408, check the EGR valve for blockages, test the EGR position sensor for proper operation, and inspect the wiring harness and connectors for any damage or corrosion.

Replace any faulty components and ensure proper connection for a successful repair.